The technique is to increase educational backgrounds and degrees through continuous studies and masterals and even doctorate programs.
But there are programs that are looking for more experience than of these certifications. However with certifications, that only proves that you're competent and has got the fundamentals and foundation knowledge of the actual skillset you're learning.
I doubt there are
that many job positions looking for more qualifications than a doctorate - that basically proves you are an expert in that field.
Besides, academic success is not required to get a good income, you can get by without it - look at all of these Silicon Valley founders for example with a vision and a plan to act on it.
It's true about not requiring academic success to have more income, it's more of grit, resourcefulness and hustle.
While having that doctorate or masteral proves that you're good academically and that's a proof that you've finished that. There are some companies that are looking for those for their higher positions.